Snow thrower with suspension mechanism

Abstract

The utility model relates to snow sweeper technical field, concretely is a snow sweeper with suspension mechanism, including connecting plate, connecting frame, round beam, connecting sleeve, welding piece, square beam, side plate, roller brush and roller brush shield, both ends of round beam all have the connecting sleeve of bushing, the front end of connecting sleeve is connected with square beam through welding piece, the front end of square beam is installed with roller brush shield, both sides of roller brush shield all are installed with side plate, the inside bushing of round beam has round beam lining axle pipe, both ends of round beam lining axle pipe are fixedly connected with side plate, both groups connecting sleeve mutually diverge's one side all are fixedly connected with round beam outer lining pipe, and the round beam outer lining pipe bushing is in the round beam lining axle pipe outside side. In the utility model, the torsional properties and the bearing strength of whole structure are strengthened through the double support of double beam, effectively resist the reaction force that roller brush operation produces and the impact that the road surface bump brings, avoid the deformation that single beam body stress overload leads.

Description

Technical Field

[0001] This utility model relates to the field of snowplow technology, specifically a snowplow with a suspension mechanism. Background Technology

[0002] This solution pertains to the field of road snow removal equipment, specifically targeting the structural support and functional coordination system of heavy-duty snowplows. It falls under the category of structural design and load-bearing technology for special-operation equipment in mechanical engineering. The core requirement in this area is to address how to balance structural stability, power transmission efficiency, and multi-condition adaptability when snowplows operate on complex road surfaces and under high-intensity conditions. This ensures that the equipment can withstand multi-directional impacts during long-term use while maintaining precise coordination of functions such as steering and height adjustment.

[0003] Traditional snowplows employ a single-beam structure for their roller brush support and power load-bearing system, using a single round or square beam as the core support component. This single beam must simultaneously fulfill two functions: firstly, it serves as the mounting base for the roller brush, allowing for height adjustment via fixed connectors; secondly, it transmits the lateral forces from the steering system and the reaction forces generated during roller brush operation. To meet load-bearing requirements, traditional technologies typically employ two optimization methods: either increasing the wall thickness of the single beam to enhance torsional strength, or using high-strength alloy materials to reduce the risk of deformation. However, neither approach alters the fundamental design logic of a single structure bearing multiple loads. Furthermore, the single-beam design necessitates the mounting of the internal combustion engine on the roller brush cover, resulting in a relatively high sweeping height.

[0004] A single beam must simultaneously bear the lateral force of steering, the reaction force of the roller brush, and the weight of the power components. The concentration of multi-directional forces leads to excessive local stress. Even with thicker walls or the use of high-strength materials, uneven force distribution can still cause torsional deformation. After long-term operation, beam bending and loosening of connectors may occur, seriously affecting the lifespan of the equipment.

[0005] Therefore, we propose a snowplow with a suspension mechanism. Summary of the Invention

[0006] (a) Technical problems to be solved

[0007] The purpose of this invention is to provide a snowplow with a suspension mechanism to solve the problems mentioned in the background art.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, this utility model provides the following technical solution:

[0010] A snow sweeper with a suspension mechanism includes a connecting plate, a connecting frame, a circular beam, a connecting sleeve, a welded component, a square beam, side plates, a roller brush, and a roller brush cover. Connecting sleeves are fitted at both ends of the circular beam. The front end of the connecting sleeve is connected to the square beam via a welded component. A roller brush cover is installed at the front end of the square beam. Side plates are installed on both sides of the roller brush cover. An inner liner tube is fitted inside the circular beam. Both ends of the inner liner tube are fixedly connected to the side plates. An outer liner tube is fixedly connected to one side of each of the two sets of connecting sleeves that are facing away from each other. The outer liner tube is fitted onto the outside of the inner liner tube, and its end is fixedly connected to the side plate. The connection point between the outer liner tube and the circular beam is located in the middle of the connecting sleeve. A roller brush is connected between the two sets of side plates via a rotating shaft.

[0011] The side of the connecting plate closest to the connecting frame is connected to two sets of steering cylinders via a cross-shaped connecting shaft. The side of the steering cylinders furthest from the connecting plate is connected to a connecting arm via a cross-shaped connecting shaft. A circular beam is connected between the two sets of connecting arms, and omnidirectional wheels are provided at both ends of the circular beam.

[0012] As a preferred technical solution, it also includes a suspension mechanism, which includes two sets of symmetrically arranged Y-shaped connecting frames and cross-shaped connecting shafts. The Y-shaped connecting frames are hinged to the connecting plate and the connecting frame through the cross-shaped connecting shafts.

[0013] As a preferred technical solution, a suspension cylinder is hinged to the middle position of the upper Y-shaped connecting frame via a P-shaped buffer lug. The lower end of the suspension cylinder is fixedly connected to the side of the connecting plate via a cross-shaped connecting shaft. The Y-shaped connecting frame and the P-shaped buffer lug are hinged via a second pin. The upper end of the suspension cylinder is hinged to the P-shaped buffer lug via a first pin. A buffer limiting square tube is fixedly connected above the Y-shaped connecting frame.

[0014] As a preferred technical solution, the top of the connecting frame is connected to a roller brush adjusting cylinder via a rotating shaft, and the other end of the roller brush adjusting cylinder is connected to the roller brush cover via a rotating shaft; an internal combustion engine mounting bracket is fixed on the square beam, an internal combustion engine is mounted on the mounting bracket, an internal combustion engine cover is provided on the internal combustion engine, a reduction gearbox and a drive shaft are connected to the output end of the internal combustion engine, the drive shaft is covered with a drive shaft cover, a drive chain cover is provided on the outer side of one set of side plates, a chain drive assembly is provided inside the drive chain cover, and the drive shaft is connected to the roller brush via the chain drive assembly; an exhaust pipe is provided below the internal combustion engine.

[0015] As a preferred technical solution, a protective plate is provided on the outer side of the side plate at the lower end of the transmission chain guard; a power unit is installed on the upper end of the connecting plate, the power unit integrating a hydraulic pump and a control valve group, and the hydraulic pump is connected to the suspension cylinder, steering cylinder and roller brush adjusting cylinder through hydraulic pipes.

[0016] As a preferred technical solution, both sides of the side plate are provided with support leg sleeves, and a support leg rod can be slidably inserted into the support leg sleeve. The end of the support leg rod is fixedly connected to a support foot, and both the support leg sleeve and the support leg rod are provided with pin holes.

[0017] As a preferred technical solution, a snow baffle is provided on the top of the roller brush cover, and the snow baffle is connected to the top of the outrigger sleeve by a snow baffle zipper; the connecting rods of the suspension cylinder, steering cylinder and roller brush adjusting cylinder are all machined with safety grooves.

[0018] As a preferred technical solution, the cross-shaped connecting shaft includes a cross-shaped casting body, a circular hole vertically opened in the middle of the cross-shaped casting body, a hinge component movably connected inside the circular hole, and a stepped shaft provided on both horizontal end faces of the cross-shaped casting body.

[0019] (III) Beneficial Effects

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0021] 1. The circular beam, through the cooperation of the connecting sleeve, the inner liner tube, and the outer liner tube, provides a flexible rotational base for adjusting the height of the roller brush and directly connects the connecting arm and caster of the steering system, bearing the transmission of steering force and lateral impact. The square beam serves as the rigid support, connecting the roller brush cover at the front end, fixing heavy components such as the internal combustion engine in the middle through the internal combustion engine mounting bracket, and stably connecting to the circular beam at the rear end, forming an integrated structure of rotational adjustment, rigid support, and power load bearing. This double-beam design centrally integrates key functions such as steering, height adjustment, and power output, avoiding the poor coordination problem caused by the dispersed force of a single structure. The two beams work together, and the double support of the double beams enhances the torsional performance and load-bearing strength of the overall structure, effectively resisting the reaction force generated during roller brush operation and the impact of road bumps, avoiding deformation caused by overload of a single beam, and improving the stability and lifespan of the equipment.

[0022] 2. The internal combustion engine is fixed to the square beam via a mounting bracket, keeping the overall height of the machine below 120cm. This offers several advantages: First, it significantly lowers the machine's center of gravity, and combined with the stability of the suspension mechanism, greatly reduces the risk of tipping over and loss of control when operating on icy, low-friction, or uneven surfaces, ensuring equipment stability. Second, it shortens the power transmission path, reducing torsional deformation and energy loss in the drive shaft, resulting in more stable roller brush speed and faster response. Third, the low installation height allows technicians to perform maintenance operations such as inspections and oil changes from the ground or in a low posture, eliminating the need for a raised platform, reducing maintenance difficulty and safety risks, and shortening downtime for maintenance. Fourth, it avoids obstructing the operator's view in the cab, ensuring that the operator can clearly observe the road conditions ahead, the extent of snow accumulation, and the operating status of the roller brush, facilitating timely adjustments to operating parameters and reducing issues such as missed areas and collisions.

[0023] 3. The suspension mechanism achieves bidirectional rotational freedom in both horizontal and vertical directions through a cross-shaped connecting shaft. Combined with the flexible hinge design of the P-shaped buffer lugs, it can adaptively swing when the load changes or the road surface fluctuates. When the equipment encounters uneven road surfaces or varying snow thickness, the Y-shaped connecting frame can automatically adapt to road undulations through bidirectional rotation and adjustment of the buffer lug angle, avoiding damage to the equipment structure from rigid impacts. Simultaneously, the buffer limiting square tube effectively limits the swing amplitude, preventing excessive deformation or interference of components, ensuring stable operation even on bumpy, icy, and other complex road surfaces. This protects the service life of the core components and guarantees consistent snow removal results, solving the problems of traditional snowplows easily getting stuck and incomplete snow removal in complex road conditions.

[0024] 4. The protective plate is installed at the lower end of the drive chain guard, allowing it to directly withstand impacts when the equipment is near curbs or hard objects on the roadside, protecting core components such as the chain drive assembly from damage. The outrigger sleeve and outrigger rod are designed to support the equipment by touching the ground with the outriggers when not in operation, preventing deformation caused by prolonged contact between the roller brush and the ground. Retracting the outriggers during operation does not affect work. The snow baffle is connected to the top of the outrigger sleeve via a zipper, preventing snow from splashing and adhering to the top of the equipment during snow removal, and facilitating disassembly, cleaning, and replacement after damage. The power unit integrates a hydraulic pump and control valve group, providing centralized hydraulic power to each cylinder, reducing the risk of failure caused by dispersed pipeline layout and improving system maintenance efficiency. These designs collectively extend the overall lifespan of the equipment and reduce daily maintenance costs.

[0025] 5. Safety grooves are machined into the connecting rods of the suspension cylinder, steering cylinder, and roller brush adjusting cylinder. When the equipment encounters extreme impacts, the safety grooves will break first, sacrificing the connecting rod, a vulnerable component, to prevent damage to core components such as the cylinder body and hinge castings due to overload. Compared to the high repair costs and prolonged downtime after core component damage, replacing the connecting rod is cheaper and simpler to operate. It effectively reduces maintenance costs and downtime under extreme operating conditions, improving the overall reliability and economy of the equipment, and is especially suitable for high-intensity snow removal operations in complex outdoor environments.

[0026] 6. The internal combustion engine exhaust pipe is arranged downwards, directly discharging exhaust gas to the ground. This reduces the direct impact of high-temperature exhaust gas on components such as the protective cover and snow deflector above the equipment, preventing plastic parts from aging due to long-term high-temperature baking and metal parts from thermal deformation, thus extending the service life of these components. At the same time, it reduces the probability of exhaust gas spreading towards the operator in the cab, reducing the risk of personnel inhaling exhaust gas during operation and improving the operating environment. The spread of exhaust gas to the ground will not form smoke accumulation above the equipment, avoiding interference with the operator's view of the road conditions, snow accumulation, and roller brush operation status, ensuring a clear working field of vision, and further improving operational safety and efficiency.

[0027] 7. The roller brush, through the extension and retraction of the roller brush adjustment cylinder and the rotational coordination of the round beam and the inner liner tube, can flexibly adjust its height, adapting to both light sweeping of thin snow and deep removal of thick snow, meeting the operational needs of different snow thicknesses. Simultaneously, the double-beam structure composed of the round and square beams, through the coordinated cooperation of the connecting sleeve, inner liner tube, and outer liner tube, forms a highly efficient support system: the round beam bears the steering and lateral force transmission, while the square beam serves as the rigid support body. Together, they enhance the overall structure's torsional resistance and load-bearing strength, effectively resisting the reaction force generated by the high-speed rotation of the roller brush and the impact of road bumps, preventing deformation of a single beam due to overload, and ensuring the roller brush maintains stable sweeping performance during long-term high-intensity operation.

[0028] 8. The steering system employs two sets of tilted steering cylinders, which drive the connecting arm to deflect via telescopic movement. Combined with the steering flexibility of the casters, this allows the snowplow to precisely deflect around the hinge center within its working area. The tilted design of the cylinders effectively avoids interference with the vibration damping mechanism of the suspension system, ensuring independent and stable operation of the steering and vibration damping systems. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0031] Figure 2 This is a schematic diagram of the installation of the vertical tube suspension mechanism of this utility model;

[0032] Figure 3 This is a detailed schematic diagram of the suspension mechanism of this utility model;

[0033] Figure 4 This is a schematic diagram of the specific structure of the circular beam of this utility model;

[0034] Figure 5 This is a schematic diagram of the overall structure of this utility model;

[0035] Figure 6 This is a front view diagram of the present invention;

[0036] Figure 7 This is a schematic diagram of the security pattern of this utility model;

[0037] Figure 8 This is a detailed schematic diagram of the cross-shaped connecting shaft of this utility model.

[0038] In the diagram: 1. Connecting plate; 2. Suspension mechanism; 201. Y-type connecting frame; 202. Cross-shaped connecting shaft; 2021. Cross-shaped casting body; 2022. Circular hole; 2023. Hinge; 2024. Stepped shaft; 203. Suspension cylinder; 204. Steering cylinder; 205. Connecting arm; 206. P-shaped buffer lug; 207. First pin; 208. Second pin; 209. Buffer limiting square tube; 3. Connecting frame; 4. Circular beam; 401. Inner lining tube of the circular beam; 402. Outer lining tube of the circular beam; 5. Connecting sleeve; 6. Welded parts; 7. Square beam; 8. Internal combustion engine mounting bracket; 801. Internal combustion engine cover; 802. Internal combustion engine; 803. Drive shaft cover; 804. Drive shaft; 805. Drive chain cover; 9. Casters; 10. Side plates; 11. Roller brush; 12. Protective plate; 13. Roller brush cover; 14. Roller brush adjusting cylinder; 15. Power unit; 16. Outrigger sleeve; 17. Outrigger rod; 18. Outrigger foot; 19. Pin hole; 20. Snow deflector zipper; 21. Snow deflector; 22. Exhaust pipe. Detailed Implementation

[0039] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0040] Example:

[0041] According to the appendix Figure 1-8 As shown, this embodiment of the utility model provides a snow sweeper with a suspension mechanism.

[0042] 1. Suspension Mechanism: Dynamic buffering, adaptable to complex road conditions

[0043] The system includes a connecting plate 1 that connects to the main frame. The snow sweeper is rigidly connected to the main frame via the connecting plate 1. The suspension mechanism 2 at its front end is the core unit, consisting of two symmetrically arranged Y-shaped connecting frames 201 and vertically extending connecting frames 3. The hinge points between the two and the connecting plate 1 and the connecting frame 3 are connected by a cross-shaped connecting shaft 202. The cross-shaped connecting shaft 202 includes a cross-shaped casting body 2021. A circular hole 2022 is vertically opened in the middle of the cross-shaped casting body 2021. A hinge 2023 that enables Z-axis rotation is movably connected inside the circular hole 2022. Both horizontal end faces of the cross-shaped casting body 2021 are machined with stepped shafts 2024 by turning. The stepped shafts 2024 are movably connected to the holes opened in the base at the installation position to achieve rotation in the X-axis direction. The cross-shaped connecting shaft 202 achieves rotational freedom in both the horizontal and vertical directions, providing a two-way hinged foundation for vibration reduction.

[0044] At the middle position of the upper Y-shaped connecting frame 201, the suspension cylinder 203 is hinged to the P-shaped buffer lug 206. The lower end of the suspension cylinder 203 is then fixed to the side of the connecting plate 1 via the cross-shaped connecting shaft 202.

[0045] The Y-shaped connecting frame 201 and the P-shaped buffer lug 206 are hinged together by the second pin 208. The upper end of the suspension cylinder 203 is hinged to the P-shaped buffer lug 206 by the first pin 207. The buffer limiting square tube 209 is fixed above the Y-shaped connecting frame 201 to limit the P-shaped buffer lug 206. The P-shaped buffer lug 206 serves as the core connecting component, connecting the Y-shaped connecting frame 201 and the suspension cylinder 203. When the suspension mechanism 2 swings due to load or road surface fluctuations, the Y-shaped connecting frame 201 shifts upwards or downwards, and the P-shaped buffer lug 206 rotates flexibly around the first pin 207 and the second pin 208 to adapt to angle changes. If the swing amplitude exceeds the limit, the buffer limiting square tube 209 contacts the corresponding structure, rigidly limiting the rotation range and preventing excessive deformation or interference of components. This achieves the adaptive swing and safety limiting function of the suspension mechanism 2, ensuring stable system operation, avoiding damage to the equipment structure and snow removal effect from rigid impacts, and significantly improving the adaptability to complex road surfaces.

[0046] II. Steering System: Flexible and precise steering to guide the snow removal path.

[0047] Two sets of steering cylinders 204 are connected to the side of the connecting plate 1 near the connecting frame 3 via a cross-shaped connecting shaft 202. The side of the steering cylinders 204 away from the connecting plate 1 is connected to a connecting arm 205 via a cross-shaped connecting shaft 202. A round beam 4 is connected between the two sets of connecting arms 205. Both ends of the round beam 4 are equipped with casters 9.

[0048] The steering cylinder 204 is arranged at an angle on both sides. It drives the connecting arm 205 to deflect by telescopic drive and cooperates with the caster wheel 9 to achieve the steering of the entire snow sweeper's working area, thereby controlling the direction of snow removal by the snow sweeper.

[0049] When the steering cylinder 204 extends or retracts, the drive connecting arm 205 deflects to one side. Combined with the 360-degree steering flexibility of the caster wheel 9, this causes the entire snowplow's working area to deflect around the hinge center, achieving precise control of the snow removal direction and adapting to diverse snow removal path requirements. The tilted cylinder design also avoids interference between steering and vibration damping actions, ensuring the stability of the dual systems operating independently.

[0050] III. Roller Brush Assembly: Height adjustable, covering multiple snow removal conditions.

[0051] Both ends of the circular beam 4 are fitted with connecting sleeves 5, allowing the circular beam 4 to rotate freely within the connecting sleeves 5. The front end of the connecting sleeve 5 is connected to a square beam 7 via a welded component 6. A roller brush cover 13 is installed at the front end of the square beam 7, and side plates 10 are installed on both sides of the roller brush cover 13. A circular beam inner lining tube 401 is fitted inside the circular beam 4, and both ends of the circular beam inner lining tube 401 are welded to the side plates 10. A circular beam outer lining tube 402 is welded to the opposite side of each of the two sets of connecting sleeves 5, and the circular beam outer lining tube 402 is fitted onto the outside of the circular beam inner lining tube 401. Its end is also welded to the side plates 10. The connection point between the circular beam outer lining tube 402 and the circular beam 4 is located in the middle of the connecting sleeve 5.

[0052] The double-beam structure, consisting of round beam 4 and square beam 7, forms a highly efficient and coordinated support system. Round beam 4, through the cooperation of connecting sleeve 5, inner lining tube 401, and outer lining tube 402, provides a flexible rotational base for adjusting the height of roller brush 11, while also bearing the responsibility for steering and transmitting lateral forces. Square beam 7, as the rigid support body, is stably connected to round beam 4 via welded parts 6. The two work together, and the dual support of the double beams enhances the overall structure's torsional resistance and load-bearing strength, effectively resisting the reaction force generated during roller brush 11 operation and the impact of road bumps, preventing deformation caused by overload on a single beam.

[0053] The top of the connecting frame 3 is connected to the roller brush adjusting cylinder 14 via a rotating shaft. The other end of the roller brush adjusting cylinder 14 is connected to the roller brush cover 13 via a rotating shaft. The two sets of side plates 10 are connected to the roller brush 11 via a rotating shaft. The height of the roller brush 11 is adjusted by the extension and retraction adjustment of the roller brush adjusting cylinder 14 and the rotation of the round beam 4 outside the inner lining tube 401 of the round beam, which is suitable for different working conditions such as thin snow and thick snow.

[0054] An internal combustion engine mounting bracket 8 is fixed on the square beam 7, on which an internal combustion engine 802 is mounted. An internal combustion engine cover 801 is provided for external protection. The power output of the internal combustion engine 802 is transmitted through a reduction gearbox and a drive shaft 804. A drive shaft cover 803 covers the drive shaft 804. A drive chain cover 805 is provided on the outer side of one set of side plates 10. A chain drive assembly is provided inside the drive chain cover 805. The drive chain cover 805 protects the chain drive assembly. The drive shaft 804 transmits power to the roller brush 11 through the chain drive assembly to drive the roller brush 11 to rotate.

[0055] The internal combustion engine 802 is powered by fuel supplied from the fuel tank of the vehicle behind it, and is connected to the fuel tank of the vehicle through fuel lines and a fuel pump.

[0056] The internal combustion engine 802 is mounted on the square beam 7 via the internal combustion engine mounting bracket 8, which greatly reduces the overall height. The body height can be controlled within 120cm. As a heavy component, the internal combustion engine is located in the lower middle part, which can significantly lower the center of gravity of the whole machine. With the suspension mechanism, it can greatly reduce the risk of tipping over and loss of control when operating on icy, snowy, low-friction roads or bumpy roads. Moreover, the equipment posture is more stable during shock absorption, avoiding the amplification of swaying caused by a high center of gravity. The square beam 7 is close to the gearbox and drive shaft 804, which shortens the transmission path from the internal combustion engine 802 to the power output end, reduces the torsional deformation and energy loss of the drive shaft 804, and makes the roller brush 11 rotate more stably and respond more quickly. The low installation height allows technicians to complete maintenance, oil change and other operations on the ground or in a low posture without climbing to a high platform, reducing maintenance difficulty and safety risks, while shortening downtime for maintenance.

[0057] With its height controlled below 120cm, this design cleverly avoids obstructing the operator's view from the cab, ensuring unobstructed views of road conditions, snow accumulation, and the operation of the roller brushes. Operators can clearly observe obstacles, road undulations, and snow removal progress along the snow-clearing path, facilitating timely adjustments to the direction of travel and operating parameters, and preventing missed areas or collisions due to obstructed vision. Furthermore, the stable operation of the suspension mechanism 2 prevents increased visual interference from machine swaying when operating on bumpy roads, ensuring operators always maintain a clear field of vision, thus improving both efficiency and safety.

[0058] An exhaust pipe 22 is located below the internal combustion engine 802. The space below directly faces the snow and road surface. The exhaust pipe 22 discharges exhaust gas downwards, which can reduce the direct impact of high-temperature exhaust gas on the protective cover, snow baffle 21 and other components above the equipment. This avoids the aging of plastic parts and the thermal deformation of metal parts caused by long-term high-temperature baking, and extends the service life of the components. At the same time, the downward discharge reduces the probability of exhaust gas spreading towards the operator, reducing the risk of personnel inhaling exhaust gas during operation and improving the safety of the operating environment. The downward arrangement of the exhaust pipe 22 can conform to the compact height design of the whole machine. The exhaust gas is discharged downwards and diffuses directly to the ground, without forming visible smoke accumulation above the equipment. This avoids visual interference with the operator's observation of the road conditions, snow conditions and the working status of the roller brush 11, ensuring that the operator can always maintain a clear working vision, and further ensuring the convenience and safety of observation during operation.

[0059] IV. Protective and Auxiliary Components: Extending lifespan and improving maintenance convenience

[0060] A guard plate 12 is provided on the outer side of the side plate 10 at the lower end of the transmission chain guard 805. The guard plate 12 protects against impact when encountering curbs or hard objects on the roadside.

[0061] A power unit 15 is installed on the upper end of the connecting plate 1. The power unit 15 integrates a hydraulic pump and a control valve group to provide hydraulic power to the suspension cylinder 203, steering cylinder 204 and roller brush adjusting cylinder 14 of the suspension mechanism, and drive the action of each actuator.

[0062] Both sides of the side plate 10 are provided with support leg sleeves 16. Support leg rods 17 can be slidably inserted into the support leg sleeves 16. Support feet 18 are fixed to the ends of the rods. Both the support leg sleeves 16 and the support leg rods 17 are provided with pin holes 19. In the non-working state, the support leg rods 17 are pulled down so that the support feet 18 touch the ground. A pin is inserted into the pin hole 19 to fix the support leg 18 to support the equipment and prevent the roller brush 11 from deforming due to long-term contact with the ground. In the working state, the pin is pulled out, the support leg rods 17 are retracted into the support leg sleeves 16, and the pin is re-inserted to lock the support foot 18 off the ground so that it does not interfere with the movement of the equipment.

[0063] A snow baffle 21 is provided on the top of the roller brush cover 13. The snow baffle 21 is connected to the top of the outrigger sleeve 16 via a snow baffle zipper 20. When sweeping snow, the roller brush 11 rotates at high speed to throw snow. The snow baffle 21 blocks the snow from splashing and adheres to the top of the equipment. The zipper 20 facilitates the disassembly, cleaning, and replacement of the snow baffle after damage, improving maintenance convenience.

[0064] V. Safety Design: Protective Vulnerable Structure

[0065] like Figure 7As shown, safety grooves are machined at the connecting rod positions of the suspension cylinder 203, steering cylinder 204, and roller brush adjusting cylinder 14, which are pre-set weak fracture areas. When the equipment encounters extreme impact, the safety grooves break first, avoiding damage to core components such as the cylinder body and hinge castings due to overload. By sacrificing vulnerable parts in the design logic, maintenance costs and downtime are reduced, and the overall reliability of the equipment is improved.

[0066] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A snowplow with a suspension mechanism, characterized in that: The assembly includes a connecting plate (1), a connecting frame (3), a circular beam (4), a connecting sleeve (5), a welded component (6), a square beam (7), side plates (10), a roller brush (11), and a roller brush cover (13). Both ends of the circular beam (4) are fitted with connecting sleeves (5). The front end of the connecting sleeve (5) is connected to the square beam (7) via a welded component (6). The front end of the square beam (7) is fitted with a roller brush cover (13). Side plates (10) are installed on both sides of the roller brush cover (13). A circular beam is fitted inside the circular beam (4). The inner lining tube (401) of the round beam is fixedly connected to the side plate (10) at both ends. The outer lining tube (402) of the round beam is fixedly connected to the two sets of connecting sleeves (5) on opposite sides. The outer lining tube (402) of the round beam is sleeved on the outside of the inner lining tube (401) of the round beam, and its end is fixedly connected to the side plate (10). The connection position between the outer lining tube (402) of the round beam (4) and the round beam (4) is located in the middle of the connecting sleeve (5). The two sets of side plates (10) are connected by a rotating shaft and a roller brush (11). The side of the connecting plate (1) near the connecting frame (3) is connected to two sets of steering cylinders (204) via a cross-shaped connecting shaft (202). The side of the steering cylinder (204) away from the connecting plate (1) is connected to a connecting arm (205) via a cross-shaped connecting shaft (202). A round beam (4) is connected between the two sets of connecting arms (205). Both ends of the round beam (4) are provided with casters (9). An internal combustion engine mounting bracket (8) is fixed on the square beam (7). An internal combustion engine (802) is mounted on the internal combustion engine mounting bracket (8).

2. A snowplow with a suspension mechanism according to claim 1, characterized in that: It also includes a suspension mechanism (2), which includes two sets of symmetrically arranged Y-shaped connecting frames (201) and cross-shaped connecting shafts (202). The Y-shaped connecting frames (201) are hinged to the connecting plate (1) and the connecting frame (3) through the cross-shaped connecting shafts (202).

3. A snowplow with a suspension mechanism according to claim 2, characterized in that: A suspension cylinder (203) is hinged to the middle position of the upper Y-shaped connecting frame (201) via a P-shaped buffer lug (206). The lower end of the suspension cylinder (203) is fixed to the side of the connecting plate (1) via a cross-shaped connecting shaft (202). The Y-shaped connecting frame (201) and the P-shaped buffer lug (206) are hinged via a second pin (208). The upper end of the suspension cylinder (203) is hinged to the P-shaped buffer lug (206) via a first pin (207). A buffer limiting square tube (209) is fixed above the Y-shaped connecting frame (201).

4. A snowplow with a suspension mechanism according to claim 3, characterized in that: The top of the connecting frame (3) is connected to a roller brush adjusting cylinder (14) via a rotating shaft. The other end of the roller brush adjusting cylinder (14) is connected to the roller brush cover (13) via a rotating shaft. The internal combustion engine (802) is provided with an internal combustion engine cover (801). The output end of the internal combustion engine (802) is connected to a gearbox and a drive shaft (804). The drive shaft (804) is covered with a drive shaft cover (803). A drive chain cover (805) is provided on the outer side of one of the side plates (10). A chain drive assembly is provided inside the drive chain cover (805). The drive shaft (804) is connected to the roller brush (11) via the chain drive assembly. An exhaust pipe (22) is provided below the internal combustion engine (802).

5. A snowplow with a suspension mechanism according to claim 4, characterized in that: The side plate (10) is provided with a guard plate (12) at the lower end of the transmission chain guard (805) on the outer side; a power unit (15) is installed at the upper end of the connecting plate (1), the power unit (15) integrates a hydraulic pump and a control valve group, and the hydraulic pump is connected to the suspension cylinder (203), the steering cylinder (204) and the roller brush adjusting cylinder (14) through hydraulic pipes.

6. A snowplow with a suspension mechanism according to claim 4, characterized in that: Both sides of the side plate (10) are provided with support leg sleeves (16), and support leg rods (17) are slidably inserted into the support leg sleeves (16). Support feet (18) are fixedly connected to the end of the support leg rods (17). Pin holes (19) are provided on both the support leg sleeves (16) and the support leg rods (17).

7. A snowplow with a suspension mechanism according to claim 6, characterized in that: The top of the roller brush cover (13) is provided with a snow baffle (21), which is connected to the top of the outrigger sleeve (16) by a snow baffle zipper (20); the connecting rods of the suspension cylinder (203), steering cylinder (204) and roller brush adjusting cylinder (14) are all machined with safety grooves.

8. A snowplow with a suspension mechanism according to any one of claims 1 to 7, characterized in that: The cross-shaped connecting shaft (202) includes a cross-shaped casting body (2021), a circular hole (2022) is vertically opened in the middle of the cross-shaped casting body (2021), a hinge (2023) is movably connected inside the circular hole (2022), and a stepped shaft (2024) is provided on both horizontal end faces of the cross-shaped casting body (2021).

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